I sometimes love how honest guides to academic “careers” can be. Take this description of a lecturer position (maître assistant):

I realize this particular information is no longer updated, but the advice is quite simple: reduce your working hours to get more work done! Makes perfect sense⸮⸮⸮
It’s quite an honest description, though: temporary posts are dangerous and may undermine an academic career.

OK, but doesn’t this make you wonder why universities actually offer these positions that by their own admission are “dangerous” for a career, that do not include enough paid hours to get your work done? This particular guide suggests that lecturers “must take precautions against being overwhelmed by student supervision” and, better still, they “renegotiate your workload as soon as possible” — as if such a renegotiation were realistically possible.
It probably makes economic sense to have this kind of jobs, but if universities were seriously against precarious positions and exploitation, perhaps they could tackle this kind of position — maybe jointly with “part-time” PhD positions? Just an idea.